Historical on-time performance
Chicago to Rapid City
779 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–RAP arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled2.0%of scheduled flights
based on 454 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- United AirlinesOn-time87%Medianon timep9020 minCancel0.8%Flights130
- Envoy AirOn-time72%Medianon timep9045 minCancel1.0%Flights191
- Republic AirwaysOn-time90%Medianon timep9010 minCancel0.0%Flights30
- SkyWest AirlinesOn-time63%Medianon timep9055 minCancel5.8%Flights103
Why flights run late
Delay causes
- Airline25%
- Weather11%
- Air traffic (NAS)28%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ORD → RAP
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 85% on time.
- Mornings85% on time · p90 20 min · 795 flights
- Middays79% on time · p90 35 min · 309 flights
- Afternoons68% on time · p90 55 min · 100 flights · limited
- Evenings63% on time · p90 50 min · 86 flights · limited
- Overnights45% on time · p90 120 min · 53 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 85% on time.
- Tuesdays85% on time · p90 20 min · 186 flights · limited
- Saturdays81% on time · p90 30 min · 187 flights · limited
- Sundays81% on time · p90 40 min · 200 flights
- Mondays79% on time · p90 30 min · 197 flights · limited
- Thursdays79% on time · p90 35 min · 197 flights · limited
- Wednesdays77% on time · p90 45 min · 185 flights · limited
- Fridays75% on time · p90 40 min · 191 flights · limited
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